Lucknow, Dec. 6 -- Chaos reigned again at Lucknow's Chaudhary Charan Singh International Airport (CCSIA) on Saturday as flight cancellations by IndiGo entered the fourth consecutive day, angering stranded passengers.

Lack of any official communication from the airline to the passengers is resulting in undue crowds gathering at departure gates, putting extra pressure on security forces.

At least 22 IndiGo flights and one Air India flight were cancelled, leaving nearly 1,000 travellers stuck inside the terminal since morning.

Tensions escalated when some passengers clashed with each other, pushing one another to the ground and exchanging blows. In a separate incident, security personnel allegedly misbehaved with media personnel covering ...